Understanding advertising on the web: this week Paul and Rich talk to John Shankman, an internet advertising veteran who has worked at companies like Federated Media, Huffington Post, and The Awl Network. He currently runs Hashtag Labs, a company that helps make ad tech more manageable for independent publishers. The conversation runs through various types of advertising online, from programmatic to direct sales to premium networks, and tracks the life of a web ad for the Paul and Rich’s new school, “Ford University.”